National Marker N140368 2 in Square Steel Broad Door Hinge

Product Description

The NATIONAL MARKER N140368 is a 2-inch square steel broad butt door hinge designed for average-weight door installations. Part of the National catalog 505 series, this tight-pin hinge features a plain steel finish suited to standard residential and light commercial door applications. Its compact square profile fits typical interior door frames and is installed by carpenters, general contractors, and facilities maintenance personnel. The tight-pin design keeps the hinge leaf secure under normal swing loads, making it a dependable choice for replacement or new-construction door hardware projects.

This hinge is appropriate for interior doors of average weight in residential and light commercial settings. It is commonly used on passage doors, utility room doors, and closet doors where a standard 2-inch square butt hinge is specified. The plain steel finish accepts paint or primer and blends into unfinished or painted door frame assemblies. Minimum order quantity is 10 pieces, making it practical for multi-door projects or hardware inventory replenishment.

Key Features

• 2-inch square profile fits standard average-weight door frames
• Tight-pin design prevents leaf separation during normal door operation
• Plain steel finish accepts paint or primer for flexible finishing
• Part of the established National 505 series catalog line
• Sold in minimum quantities of 10 for project and inventory use

Compatibility

Designed as an OEM-style replacement or new-installation hinge for average-weight interior doors requiring a 2-inch square broad butt configuration.

Installation Notes

Installation is performed by carpenters or general contractors using standard woodworking chisels and screwdrivers to mortise and mount the hinge leaf flush with the door edge and frame. Power down any electric door hardware or access control systems before servicing associated door assemblies. Ensure the door is properly supported during hinge replacement to prevent binding or misalignment. Follow applicable local building codes for door hardware installation requirements.

Technical Specifications

• Size: 2 inches square
• Material: Steel
• Finish: Plain steel
• Pin Type: Tight pin
• Weight: 0.134 pounds
• Series: National 505
• Unit of Measure: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N140368